Singmogil was designated by presidential decree in 1949 following legislation by the National Assembly.

In 1960, Singmogil's status as a holiday was abolished and April 5 was treated as any other day.

On Singmogil, South Korean people plant trees that are appropriate for the region's climate.

During the month of Singmogil, the government encourages the economical utilization of forestry by designating a "National Planting Period."

Even though Singmogil was abolished in 2006 as a holiday,[2] the South Korean public continues to take part in meaningful activities.